Steps 1 - 32
Assembly
1. CAUTION: Do not omit the pinion bearing oil baffle; bearing failure can result.
If removed, position the baffle on the special tool.
2. Using the special tool, install the baffle.
3. NOTE: Always install new pinion bearings when installing new pinion bearing cups.
Lightly oil the new pinion bearing cups and pinion bearings with Motorcraft SAE75W-90 Premium 4x4 Front Axle Lubricant XY-75W90-TQL or equivalent meeting Ford specification WSP-M2C201-A.
4. Using the special tool, install the bearing cups.
5. NOTE: You must use the pinion bearings assembled in this procedure step at final assembly.
Assemble and position the special tools and the pinion bearings in the carrier housing.
1 Position the Screw.
2 Position the Aligning Adapter.
3 Position the pinion bearing.
4 Position the Gauge Disc.
5 Position the Gauge Block.
6 Position the pinion bearing.
7 Thread on the Handle.
6. NOTE: This step duplicates final pinion bearing preread.
Tighten the special tool to the specification to simulate bearing preload.
7. NOTE: Offset the Gauge Block to obtain an accurate reading.
Rotate the Gauge Block several half-turns to make sure the pinion bearings seat correctly and position the Gauge Block.
8. Install the special tool.
1 Position the special tool.
2 Install the differential bearing caps.
3 Install the bolts.
9. NOTE: Use only flat, clean drive pinion bearing adjustment shims.
NOTE: Selection of a shim that is too thick results in a deep tooth contact at final assembly of integral axle assemblies. Do not attempt to force the shim between the Gauge Block and the Gauge Tube. A slight drag indicates correct shim selection.
Use a drive pinion bearing adjustment shim as a gauge for shim selection.
^ Check the adjustment shim thickness between the Gauge Block and the Gauge Tube.
^ After determining the correct shim thickness, remove the special tools.
10. NOTE: You must use the same pinion bearings from the previous steps.
Install the pinion bearing.
^ Place the drive pinion bearing adjustment shim on the pinion gear.
^ Using a suitable press and the special tool, press the pinion bearing until it is firmly seated on the pinion gear.
11. Place a new drive pinion collapsible spacer on the pinion stem.
12. Install the outer pinion bearing.
13. Install the slinger.
14. NOTE: Coat the lips of the pinion seal with Motorcraft SAE 75W-90 Premium 4x4 Front Axle Lubricant XY-75W90-TQL or equivalent meeting Ford specification WSP-M2C201-A.
Place the pinion seal on the special tool.
15. Place the special tool and seal in the pinion seal bore and drive the seal into place.
16. Lightly lubricate the pinion gear splines with Motorcraft SAE 75W-90 Premium 4x4 Front Axle Lubricant XY-75W90-TQL or equivalent meeting Ford specification WSP-M2C201-A.
17. Position the pinion gear in the housing.
18. CAUTION: Never install the axle universal joint flange with a hammer.
NOTE: Disregard the scribe marks if installing a new flange.
Align the index-marks and position the universal joint flange on the drive pinion.
19. Using the special tool, install the axle universal joint flange.
20. Apply a small amount of lubricant to the washer side of the new pinion nut, and install the nut.
21. CAUTION: Do not loosen the pinion nut to reduce preload under any circumstance. If it is necessary to reduce preload, install a new drive pinion collapsible spacer and pinion nut.
Install the special tool, and tighten the pinion nut.
^ Rotate the pinion gear occasionally to make sure the pinion bearings are seating correctly. Take frequent pinion bearing torque preload readings by rotating the pinion gear with an Nm (inch/pound) torque wrench.
22. CAUTION: Use extreme care not to damage the aluminum differential carrier housing while performing the following procedure steps.
CAUTION: The special tools are marked LH and RH. Install them accordingly.
Install the special tools.
23. Install the differential case with the Master Bearings in the differential carrier.
24. NOTE: Repeat this step until you obtain a consistent reading.
Measure the total end play.
1 Position the special tools.
2 Position the indicator tip on the machined surface and adjust it to measure full travel.
3 Push the differential case left and right (as far as possible).
4 Measure the total end play and record the reading on the Differential Bearing Shim Selection Procedure Worksheet, Line A in this procedure.
25. Remove the special tools and the differential case.
26. Use a fine flat file to remove any burrs or nicks from the ring gear mounting surface.
27. Install the ring gear.
1 Position three bolts to align the holes in the ring gear and the differential case.
2 Using a suitable press, install the ring gear.
28. Install the remaining bolts.
29. Remove three adjacent bolts.
30. CAUTION: Position the three empty bolt holes downward.
Position the differential case with the special tools into the differential carrier housing.
31. Position the special tools.
32. Push and rock the ring gear into mesh with the pinion gear (zero backlash) and adjust the special tool to zero.